The gallery have been added to a full width Area. Colors have bee set on each image and the option "Color Transitions" have been activated. The result is a gallery where the background change to the color of each image. If no color is set on a image, the gallery take the global color BG set in options.
The interest of "Responsive Container" is only if you want to have a full with colored gallery but where images have same witdh as your page content. The responsive container respect Bootstrap responsive widths.
items : 1
Color Transitions : ON
Responsive Container : ON
Navigation : ON
Dots : NO
Loop : ON
Custom Next/prev text from here : http://fontawesome.io/icon/hand-o-left/
One Slide : This custom template is used here only for the caption position and size that is optimized for 1 item.